Section 8.  Operation 
 
 
 
8.10.1.10  Ping (IP) 
Ping can be used to verify that the IP address for the network device connected to 
the CR800 is reachable. To use the Ping tool, open a command prompt on a 
computer connected to the network and type in: 
ping xxx.xxx.xxx.xxx <Enter> 
where xxx.xxx.xxx.xxx is the IP address of the network device connected to the 
CR800. 
 
8.10.1.11  SNMP 
Simple Network Management Protocol (SNMP) is a part of the IP suite used by 
NTCIP and RWIS for monitoring road conditions.    The CR800 supports SNMP 
when a network device is attached. 
 
8.10.1.12  Telnet 
Telnet is used to access the same commands that are available through the support 
software terminal emulator
 (p. 518). Start a Telnet session by opening a DOS 
command prompt and type in: 
Telnet xxx.xxx.xxx.xxx <Enter> 
where xxx.xxx.xxx.xxx is the IP address of the network device connected to the 
CR800. 
 
8.10.1.13  SMTP 
Simple Mail Transfer Protocol (SMTP) is the standard for e-mail transmissions. 
The CR800 can be programmed to send e-mail messages on a regular schedule or 
based on the occurrence of an event. 
 
8.10.1.14  Web API 
The CR800 has a web API.    See CRBasic Editor Help for details. 
 
8.10.1.15  Web API — Details 
The CR800 web API (Application Programming Interface) is a series of URL (p. 
519) 
commands that manage CR800 resources.    The API facilitates the following 
functions: 
•  Data Management 
—  Collect data